Sealed dust removal device for movable discharging car of belt conveyor

The utility model discloses a sealing dust removal device for a movable discharging car of a belt conveyor. The sealing dust removal device comprises a chute, a sealing cover is arranged at the lower end of the chute, an air draft dust removal pipe communicated with the inner space of the sealing cover is arranged on the sealing cover, dust covers are arranged on the front side and the rear side of the sealing cover respectively, and redirection rollers are arranged in the dust covers. The sealing belt covers the upper end of a feeding port of the whole stock bin and is supported on a supporting guide roller located above the chute, the supporting guide roller is arranged on a frame of the discharging trolley, the tension adjusting mechanism comprises a belt pressing roller arranged in the dust cover, the belt pressing roller is located on one side of the direction changing roller, the position of the belt pressing roller is lower than that of the direction changing roller, and the belt pressing roller is arr